CN203067639U - Three-line pendulum series connection air spring vibration isolation mechanism and vibration isolation system - Google Patents
Three-line pendulum series connection air spring vibration isolation mechanism and vibration isolation system Download PDFInfo
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- CN203067639U CN203067639U CN2012206521704U CN201220652170U CN203067639U CN 203067639 U CN203067639 U CN 203067639U CN 2012206521704 U CN2012206521704 U CN 2012206521704U CN 201220652170 U CN201220652170 U CN 201220652170U CN 203067639 U CN203067639 U CN 203067639U
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- pendulum
- vibration isolation
- series connection
- pneumatic spring
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Abstract
The utility model provides a three-line pendulum series connection air spring vibration isolation mechanism and a vibration isolation system and relates to a vibration isolation device for precise instrument machining, manufacture, measurement and an optical platform. The three-line pendulum series connection air spring vibration isolation mechanism comprises two portions of an air spring and a three-line pendulum. The air spring comprises a rubber piston, a main chamber, a throttling hole and an additional chamber. The three-line pendulum comprises an upper pendulum plate, pendulum lines, a pendulum rod and a lower pendulum plate. The lower portion of the main chamber is communicated with the upper portion of the additional chamber through the throttling hole. The lower end of the additional chamber is connected with the lower pendulum plate. The upper end and the lower end of each pendulum line are respectively connected with the upper pendulum plate and the lower pendulum plate. Connecting points are correspondingly and evenly distributed on two circumferences of the upper pendulum plate and the lower pendulum plate. The additional chamber serves as a pendulum rod of the three-line pendulum. The main chamber, the additional chamber, the upper pendulum plate and the lower pendulum plate are vertically and concentrically arranged. The rubber piston serves as a load supporting body. Vibration isolation is achieved. According to the three-line pendulum series connection air spring vibration isolation mechanism and the vibration isolation system, vibration isolation in three degrees of freedom in the horizontal and perpendicular directions can be achieved, low frequency vibration isolation effect is good, meanwhile, structure design is compact, and machining and manufacturing cost is low.
Description
Technical field
The utility model relates to a kind of three string pendulums series connection pneumatic spring vibration isolating mechanism and vibrating isolation system, is used for isolating coming from the outside vertically and the vibration of substantially horizontal.This vibration isolating mechanism is mainly used in optics, ultraprecise detection, ultraprecise processing and other fields.
Background technique
Current, the precision type instrument industry particularly relates to the positive fast development of ultraprecise processing, manufacturing and optical field both at home and abroad, and meanwhile, environmental disturbances is very important further to the influence of the sector, vibration isolation becomes a kind of the most practical the most effective method, and wherein passive vibration isolation uses very extensive.
Vibration is divided into vertical and the substantially horizontal three degree of freedom substantially, and present most popular vertical vibration mechanism surely belongs to pneumatic spring, and it has to make processes outstanding advantages such as simple, with low cost, that anti-vibration performance is good.Horizontal vibration isolating mechanism has laminated rubber, three string pendulums, fall pendulum, just fall form such as pendulum combination, its natural frequency is all relevant with pendulum length, the natural frequency reduction means that pendulum length must increase, the while mechanism height can rise, and is unfavorable for stablizing of system.
The model utility content
The purpose of this utility model is to propose a kind of three string pendulums series connection pneumatic spring vibration isolating mechanism and vibrating isolation system, can realize simultaneously that the vibration of the three degree of freedom of vertical and substantially horizontal is isolated.
Realization technological scheme of the present utility model is as follows:
A kind of three string pendulums series connection pneumatic spring vibration isolating mechanism, described three string pendulums series connection pneumatic spring vibration isolating mechanism comprises pneumatic spring and two parts of three string pendulums, described pneumatic spring comprises rubber piston, main chamber, throttle orifice and further chambers, and main chamber bottom and further chambers top are communicated with by throttle orifice; Described three string pendulums comprise balance, cycloid, fork and lower swinging disc; It is characterized in that: described further chambers is as three string pendulum forks, the further chambers lower end is connected with lower swinging disc, the two ends up and down of described cycloid are connected with lower swinging disc with last balance respectively, cycloid up and down tie point is corresponding and be uniformly distributed on two circumference of balance and lower swinging disc, main chamber, further chambers, last balance and lower swinging disc are vertically installed with one heart.
A kind of three string pendulums series connection pneumatic spring vibrating isolation system that the utility model provides, this system is made up of described three a string pendulums series connection pneumatic spring vibration isolating mechanism, or formed by three described three string pendulums series connection pneumatic spring vibration isolating mechanisms, and and be unified into regular polygon or rectangle.
The utility model compared with prior art has following advantage: the one since with the pneumatic spring further chambers as three string pendulum forks, make simple and compact for structurely, and described component are easy to processing and make, so cost is lower; The 2nd, pneumatic spring and three string pendulum low frequency vibration isolations are effective, and its natural frequency is lower especially in the horizontal direction, and can realize the vibration isolation of vertical and horizontal three degree of freedom simultaneously.
Description of drawings
The three string pendulums series connection pneumatic spring vibration isolating mechanism master sectional view that Fig. 1 provides for the utility model.
The three string pendulums series connection pneumatic spring vibration isolating mechanism 3D stereogram that Fig. 2 provides for the utility model.
Fig. 3 is the worm's eye view of Fig. 2.
Among the figure: the 1-rubber piston; 2-main chamber; The 3-throttle orifice; The 4-further chambers; The 5-lower swinging disc; The 6-cycloid; The last balance of 7-.
Embodiment
Specify the utility model mode of execution below in conjunction with accompanying drawing.
Fig. 1 is the result schematic diagram of three string pendulums series connection pneumatic spring vibration isolating mechanism, described three string pendulums series connection pneumatic spring vibration isolating mechanism comprises pneumatic spring and two parts of three string pendulums, and described pneumatic spring comprises rubber piston 1, main chamber 2, throttle orifice 3 and further chambers 4; Described three string pendulums comprise balance 7, cycloid 6, fork and lower swinging disc 5, described main chamber 2 bottoms and further chambers 4 tops are communicated with by throttle orifice 3, further chambers 4 lower ends are connected with lower swinging disc 5, the two ends up and down of described cycloid 6 are connected with lower swinging disc 5 with last balance 7 respectively, cycloid about in the of 6 tie point corresponding and be uniformly distributed on two circumference of balance 7 and lower swinging disc 5, main chamber 2, further chambers 4, last balance 7 and lower swinging disc 5 are vertically installed with one heart, wherein further chambers 4 is as three string pendulum forks, and three string pendulums are isolated with the vibration of pneumatic spring series connection realization level and vertical three degree of freedom.
A kind of three string pendulums series connection pneumatic spring vibrating isolation system that the utility model provides, formed by described three a string pendulums series connection pneumatic spring vibration isolating mechanism, or formed by three described three string pendulums series connection pneumatic spring vibration isolating mechanisms, and and be unified into regular polygon or rectangle, to increase ability to bear.
The three string pendulums series connection pneumatic spring vibration isolating mechanism working principle that the utility model provides is as follows:
When system is subjected to disturbance from substantially horizontal, pneumatic spring top is together with further chambers 4 skew equilibrium positions, system returns to former balance position under the pulling force of cycloid 6 and the effect of load gravity, because system level direction natural frequency is lower, can isolate the vibration from the ground level direction.Equally, rubber piston 1 floats after the pneumatic spring inflation, the support load is floated, when the vibration that is subjected to from the Vertical direction on ground, rubber piston 1 produces displacement, and main chamber's 2 volumes change, thereby gas pressure intensity changes, gas because the specific function of pneumatic spring makes mechanism's mechanical energy be converted into thermal energy consumption, is realized the vibration isolating effect of Vertical direction by throttle orifice 3 turnover further chambers 4; Thereby system can realize the vibration of vertical and substantially horizontal three degree of freedom and isolate.
Claims (2)
1. string pendulum series connection pneumatic spring vibration isolating mechanism, described three string pendulums series connection pneumatic spring vibration isolating mechanism comprises pneumatic spring and two parts of three string pendulums, described pneumatic spring comprises rubber piston (1), main chamber (2), throttle orifice (3) and further chambers (4), and main chamber (2) bottom and further chambers (4) top are communicated with by throttle orifice (3); Described three string pendulums comprise balance (7), cycloid (6), fork and lower swinging disc (5); It is characterized in that: described further chambers (4) is as three string pendulum forks, further chambers (4) lower end is connected with lower swinging disc (5), the two ends up and down of described cycloid (6) are connected with lower swinging disc (5) with last balance (7) respectively, cycloid (6) tie point up and down is corresponding and be uniformly distributed on two circumference of balance (7) and lower swinging disc (5), described main chamber (2), further chambers (4), goes up balance (7) and the vertical concentric installation of lower swinging disc (5).
2. string pendulum series connection pneumatic spring vibrating isolation system, it is characterized in that: this system is made up of three a string pendulums series connection pneumatic spring vibration isolating mechanism as claimed in claim 1, or formed by three string pendulums as claimed in claim 1 series connection pneumatic spring vibration isolating mechanism more than three, and and be unified into regular polygon or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206521704U CN203067639U (en) | 2012-11-30 | 2012-11-30 | Three-line pendulum series connection air spring vibration isolation mechanism and vibration isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206521704U CN203067639U (en) | 2012-11-30 | 2012-11-30 | Three-line pendulum series connection air spring vibration isolation mechanism and vibration isolation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067639U true CN203067639U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206521704U Expired - Lifetime CN203067639U (en) | 2012-11-30 | 2012-11-30 | Three-line pendulum series connection air spring vibration isolation mechanism and vibration isolation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996695A (en) * | 2012-11-30 | 2013-03-27 | 清华大学 | Three-line pendulum in-series air spring vibration isolation mechanism |
| CN109085557A (en) * | 2018-09-20 | 2018-12-25 | 上海大学 | A kind of laser radar stabilising arrangement |
-
2012
- 2012-11-30 CN CN2012206521704U patent/CN203067639U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996695A (en) * | 2012-11-30 | 2013-03-27 | 清华大学 | Three-line pendulum in-series air spring vibration isolation mechanism |
| CN109085557A (en) * | 2018-09-20 | 2018-12-25 | 上海大学 | A kind of laser radar stabilising arrangement |
| CN109085557B (en) * | 2018-09-20 | 2021-02-02 | 上海大学 | Laser radar stabilising arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100084 Beijing Haidian District Beijing 100084 box 82 box, Tsinghua University Patent Office Co-patentee after: BEIJING U-PRECISION TECH Co.,Ltd. Patentee after: TSINGHUA University Address before: 100084 Beijing Haidian District Beijing 100084 box 82 box, Tsinghua University Patent Office Co-patentee before: U-PRECISION TECH Co.,Ltd. Patentee before: Tsinghua University |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |